Comparison

Spanish Fluency Practice vs Calvin Chess Trainer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Spanish Fluency Practice

Build conversational confidence with structured listening and speaking exercises. Practice hundreds of phrases across six levels, with native-quality voices and a distraction-free interface. Track your progress and focus on mastering difficult phrases.

Highlights
  • Structured listening and speaking exercises
  • Hundreds of phrases across 6 levels
  • Native-quality voices
  • Adjustable pause duration
  • Review difficult phrases
  • Progress tracking
  • Distraction-free interface
Features
Read full description

Spanish Fluency Practice helps you build real conversational confidence through structured listening and speaking exercises. HOW IT WORKS Each lesson has two phases: Listening Phase — Hear Spanish phrases spoken by native Google Cloud voices, then see the English translation. Absorb natural pronunciation and rhythm at your own pace. Speaking Phase — See the English first, try to recall the Spanish, then hear the correct answer. Active recall is the fastest path to fluency. KEY FEATURES - Hundreds of phrases across 6 levels, from beginner to advanced - Randomised native-quality voices (Google Cloud TTS) for natural variety - Adjustable pause duration between phrases - Mark phrases you find difficult — they replay automatically at the end of each phase - Dedicated Review Queue to revisit and master tricky phrases - Simple transport controls: play, pause, skip, repeat, and navigate freely - Clean, distraction-free interface designed for focused practice - Progress tracking across levels and lessons - Works on iPhone and iPad

About

Calvin Chess Trainer

Features
Read full description

Calvin Chess Trainer drills the skills that puzzles take for granted: seeing the whole board, and reading and finding squares and moves without thinking. Daily warm-up Five quick timed drills, about five minutes: find the checks, spot the loose pieces, find the forks, name squares from Black's side, then a mate in one. Vision • Find Checks: every check in a real game position • Find Captures: every capture on the board • Hanging Pieces: every undefended piece • Forks & Skewers: the squares that hit two targets • Knight Sight: every square a knight reaches • Knight Flight: the fewest moves to the target • Pawn Attack: slip past a wall of pawns • Mate in 1: 400 positions, one move to mate Notation • Squares: find the square, fast, from White's side or Black's • Files & Ranks: name every file and rank • Read Moves: read a move, then play it • Piece Letters: K, Q, R, B and N at a glance • Piece Values: which side comes out ahead? Opening Explorer Play through the openings with book moves, Stockfish hints and an evaluation bar. Practice your way • Practice at your own pace, or race the clock in timed rounds • Every drill remembers its setup, and Continue picks up where you left off • Results show the answers you missed • Personal bests, saved on your device • Squares and pieces spoken aloud as you play • Works offline No ads, no in-app purchases and no account. From Internut Education.

Screenshots

Spanish Fluency Practice3 screens
Calvin Chess Trainer4 screens

Verdict

The call

Spanish Fluency Practice and Calvin Chess Trainer are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Spanish Fluency Practice versus Calvin Chess Trainer: the parameters behind the verdict, then further details
ParameterSpanish Fluency PracticeCalvin Chess Trainer
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size2 MB170 MB
Age rating4+4+
Developermartin theisDAVID MARKLE

In-app purchases

None

Spanish Fluency Practice

No in-app purchases

None

Calvin Chess Trainer

No in-app purchases

Questions

Is Spanish Fluency Practice free?
Spanish Fluency Practice is free to download, with no in-app purchases.
Is Calvin Chess Trainer free?
Calvin Chess Trainer is free to download, with no in-app purchases.
Do Spanish Fluency Practice or Calvin Chess Trainer have ads?
Neither Spanish Fluency Practice nor Calvin Chess Trainer shows ads.

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